Daikin Emura RXJ20A5V1B Service Manual page 125

To install the main PCB
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
5 Remove the ferrite core (for ground wiring) from the switch box (unplug
fixation plug).
6 Disconnect all other connectors from the main PCB.
7 Remove the screws from the main PCB.
8 Remove the main PCB from the unit.
9 To install the main PCB, see
1 Apply grease to the PCB contact surface of the heat sink. Distribute the grease
as evenly as possible.
CAUTION
ALWAYS apply new grease on the PCB heat sink. NOT doing so may cause the PCB to
fail due to insufficient cooling.
2 Install the main PCB in the correct location in the switch box.
d d
d
d
d
a Power supply wires from X1M
b Wire from X1M
c Ground wiring
d Screw
e Main PCB
3 Install and tighten the screws.
4 Install the ground wiring on the switch box and fix using the screw.
5 Fix the ferrite core (for ground wiring) to the switch box (fixation plug).
6 Connect the power supply wiring to the main power supply terminal X1M.
7 Connect the wire to the main power supply terminal X1M.
8 Fix the ferrite core(s) (for power supply wiring) to the switch box (fixation
plug).
9 Connect all other connectors to the main PCB.
INFORMATION
Use the wiring diagram and connection diagram for correct installation of the
connectors, see
Is the problem solved?
Yes
"Repair procedures" [
e
"7.2 Wiring diagram" [ 4 199].
Action
No further actions required.
4 Components
|
4
124].
b
a
a
c
Service manual
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